Indiana State Police are looking for the driver who opened fire in a case of road rage. They'd like to hear from anyone who might have seen the shooting on Interstate 80/94.

The victim admits he may have cut off another driver at a merge, but the other driver then chased him down and fired a shot that hit him in the back. The wounded driver was able to make his way off the expressway and call police.

The shooting happened shortly after 4 p.m. on Wednesday on I-80/94 between Cline Avenue and Ripley Street.

That wounded driver is expected to survive. He initially thought he'd been hit by a brick or some other object, never dreaming the driver he cut off would pull out a handgun.

The bullet shattered a rear window of the victim's pickup truck before hitting the 48-year-old Valparaiso man in the back.

"You do get a lot of road incidents on the interstate. But it's not common for it to get this far," said Trooper Davonne Barlow, Indiana State Police.